@book{
title = {Der Froschkönig },
author = {Grimm, Jakob},
editor = {Grimm, Wilhelm},
editor = {Lefin, Petra},
editor = {Mit vollständiger Textvorlage },
editor = {Tavole illustrate per Kamishibai },
editor = {Età: dai 0 ai 5 anni },
year = {2010},
address = {München },
publisher = {Don Bosco},
}